Hydrocarbon-burner.



M. C. STEESE.

HYDROCARBON BURNER.' APPLICATIOP} FILED SEPT. 6. I917.

Patented Max: 11, 1919.

' Ina/art???" v Waraw G $zfeea To all whom it may concern:

rli I {*3 Trig MARCUS (f. STEESE, F DULUTH,

nrnnocAnBon-Bumrnn.

Be itknown that- 'I, MARCUS C. Srnnsn, a citizen of the United States, and resident of Duluth,in the county of St. Louis and State of Minnesota, have invented certain new anduseful Improvements in Hydrocarbon-Burners of which the following is a specification.

invention relates to hydro-carbon burners.

Oneof the objects of the invention is to thoroughly atomize hydro-carbons-in an improved manner to obtain'eflicient results.

Another object is to simplify and improve hydro-carbon burners to meet the "various eratlon.

requirements for successful commercial op- Theseand other objects are accomplished in general, by providing a hydro-carbon burner having steam or an and hydro-carbon conveying conduits arranged one within theother, the ends of said conduitsterminating adjacent each other to form a narrow passage-way therebetween whereby high v'elocity steam or air has a double converging speed increasing action on the hydro-carbon not only to draw the latter from its'con'duit but also to cause the hydro-carbon to be thorou hly atomized. he invention is illustrated on the accompanying sheet of drawings, in which,

Figure 1 is a side elevation "of my burner; Fig.2 is a fragmentary longitudinal sectional view ofthe same; and

Fig. 3 is a transverse sectional view taken in the plane of line 3? of Fig. 2.

The various novel features of my invention will be apparent from the-following description and drawings and willabe particularly pointed out in the appended-claims.

Due to the fact that hydro-carbons generally, and especially the higher grades of hydro-carbons, have greatly increased in cosh-more or less effort is being madeto burn the lower grades of hydro-carbons for heating purposes. However, some of the lower-grades of hydro-carbons are extremely sluggish, thereby making it diflicult to get the heavier hydro-carbons in such condition i as to burn the same efficiently. Tar, for example, is one of the relatively heavy hydrocarbons which may be burned efliclently for heating purposes if the same is in proper condition. The main problem, therefore, of

utilizing the relatively heavy hydro-carbons such as .tar and the like, is to thoroughly Specification of Letters Fatent. Patent-ed Man, 311 1%19, Application med September a, ram. a ses, 190,039. I i

disintegrate or atomize such heavy hydroouter fluid-conveying conduit 11 through which any suitable 'atomizing medium may pass, and a hydro-carbonconveyingconduit 12 within 'the fluid-conveying conduit 11; In this particular instance let it be assumed that the heavy hydro-carbon which-is being treated is tar 13 shown within the conduit 12. It will be noted that the active end of the conduit 11 is'in the form of a stream line curve and extends inwardly toward the ac tive end of the tar-conveying-conduit '12. The conduits converge toward each other at their ends and form a relatively small passageway 1ft between the conduits 11 and 12; The active end of the tar-conveying conduit is beveled exteriorly, thereby cooperating with the inwardly extending end portion of the fluid-conveying conduit '11 to determine the path of movement of atomizing medium which passes outwardly from the conduit 11 through the narrow passageway 14. The arrangement and shape of the walls of the two conduits, at their active ends issuch as to cause the velocity of the ato'mizing me dium at the small annular vpassageway 14 to be greatly increased. The atomizing medium is preferably high pressure steam' or air. When I refer to a conduit or-tube'having a stream line curve or more particularly a curve which in the flow offiuids transfers pressure and flow to velocity and flow. When I refer to a stream line fiow, I mean a flow of fluid the cross section-of which at consecutive points is proportionate inversely to the velocity at the respective points e., the stream line flow transfers pressure into velocity with the least possible loss'of energyJIt may or may not be within a tube or chamber. To clarify the exact action of the atomizing medium on the tarylet it be assumed first that the opening or passageway 14 extends through but a few degrees at the top and end of. the tar conduit '12. Under. such conditions the atomizing medium would flare outwardly and down 1 have provided a that the atomizing medium of the s stream, line flow completely disintegrates that in addition the passageway 14 extends but a few degrees at the bottom and end of the tar conduit 12. Under such conditions there would be a second high velocity stream of the atomizing medium, but in this case extending or flaring upwardly and outwardly across the front end of the steam conduit 11. These two high velocity streams cross the paths of each other in a very a and bounded by stream line curves gormed in the air and they are as positive y defined as if the flow were within a tube shaped with stream line curves. It naturally follows that the velocity of the atomizing me dium is the greatest at this point 16, and is considerably greater at this point than at the passageway 14. The practical efiects'and results, among others, are these; that a partial vacuum is formed slightly in advance of the end of thetar conduit 12 and between the end ofthe tar conduit and the narrowest part 16 of the second stream line flow, thereby causing the tar 13 to be drawn from its conduit; that the high pressure atomizing medium of the first stream line flow-acts to slice ofl minute globules/of tar;

dary

and atomizes the tar sothat the same may. beburned efliciently. The vacuum is causedi P mari y. by the second stream line flowl intention to cover all such modifications and secgndarily by the first stream line flow. By means of this arrangement a minimum amountlof steam or air, as the case may be, is used and at a maximum velocity to accomplish the 'desired results The high speed steam or air acts on the tar to draw the same to a point such as shown at 15.

Th hydro-carbon may be supplied from any suitable source to the rear end of the hydro-carbon-conveying conduit 12 and the atomizing medium may be supplied from any suitable source through a pipe 17 which connects with the condult 11.

It is highly essential that the hydro-carbon-conveying conduit should be located centrally with respect to the steam or air conveying conduit 11. For this purpose I plurality of longitudinally spaced sets of set screws 18 which are threaded through the steam or air conve ing conduit 11 and engage the external su iface of the hydrocarbon-conveying conduit 12. By proper manipulation of the set screws the hydro-carbon-conveying conduit 12 may be accurately located centrally with respect to the steam or air conveying conduit 11. It will be appreciated that other centering means may be provided for the hydro-carbon-conveying conduit 12. The rear end of the. hydro-carbon-conveylng conduit 12 is threaded through a collar 19 which in turn is threaded into a T-member 20 which also receives the steam or air conveying pipe 17-. By means of this arrange-' meht the hydro-carbon-conveying conduit 12 may be accurately adjusted longitudinally.

with respect to the other conduit 11 to position the actiye ends thereof in a manner to produce the best results; When thecondult 12 is thusv positioned the same may be lockedby a lock nut'; 21. I

As mentioned :'above', the hydro-carbon conveying conduit lies" wholly withln the fluid conveying conduit, or the active ends of said conduits lie substantially in the same transverse plane, the active end 'of said conduits being associated with respect to each other in such a manner thata relatively narrow opening is formed for the passage of high pressure fluld. The opening of the hydro-carbon conveying condult is relatively large with respect to the opening for the high pressure fluid, said condult terminating in a knife edge, the high pressure fluid in passing through the narrow opening between said conduits acting upon the hydro-carbon in such a manner as to draw the same from its conduit by suction,

and slicing the hydro-carbon oflf to thorwhich do not involve a departure from the spirit and scope of the invention as set forth in the following claims.

I claim:

1. In a hydro-carbon burner, the combination of fluid and hydro-carbon conveying conduits, the latter being wholly within the former, said conduits forming a relatively narrow opening for the passage of high pressure fluid, the opening of the h dro-carbon conveying conduit being un o structed and such as to permit the hlgh pressure fluid to draw the hydro-carbon from its conduit by suction, the openings of the conduits being arranged in' a manner such that the hydro-carbonis sliced oil by the high pressure fluid.

21 In a hydro-carbon burner, the combination of fluid and hydro-carbon conveying conduits, the active ends of which terminate substantially in the same transverse plane, said conduits forming a relatively narrow opening for the passage of high pressure fluid, the opening of the hydrocarbon conveying conduit being unobstructed and such as to permit the high pressure fluid to draw the hydro-carbon from its conduit by suction, the openings of said conduits being arranged in a manner such that the hydro-carbon is sliced off by the high pressure fluid.

3. In a hydro-carbon burner, the combination of fluid and hydro-carbon conveying conduits, the activeen-ds of which terminate adjacent each other to form a relatively narrow opening for the passage of high pressure fluid, the hydro-carbon conveying conduit having an unobstructed opening and terminating in a knife edge past which the high pressure fluid passes for drawing'the hydro-carbon from its conduit by suction, the opening through which the high pressure fluid passes being arranged in a manner such that the hydro-carbon which is Copies of this patent may be obtained for five cents each, by addressing the Washington, D. G."

drawn from its conduit is sliced 06 for thoroughly disintegrating the hydro-carbon. I

4:. In a hydro-carbon burner, the combination of fluid and hydro-carbon conveying conduits, the hydro-carbon conveying conduits being arranged to forma relatively narrow opening for the passage of high pressure fluid, the opening of the hydrocarbon conveying conduit being unobstructed and relatively large with respect to the opening for the high pressure fluid, the openings of said conduits being arranged in a manner such that the hydro-carbon is drawn from its conduit by suction and sliced off by th high pressure fluid.

Signed at Duluth, Minnesota, this eighteenth day of August, 1917. V

MARCUS C. STEFSE.

Commissioner of latents, 

